Unlike physical geometry which are the actual heads, tracks, and sectors, logical geometry is basically that information which is reported as addressable to the Bios/Os
Physical files include things like paper documents, hard drives, USB drives, and CDs. Logical files include databases, spreadsheets, and email accounts.
When you partition a hard drive into two or more partitions (storage areas) those extra drives are called logical drives. So you can have 2 or 3 or more logical drives on one physical hard drive. It varies.
A schema separates the physical aspect of data storagefrom the logical aspects of data representation.
The main reason for using multiple logical drives is to optimize storage management and organization. By partitioning a physical drive into multiple logical drives, users can separate different types of data, such as operating systems, applications, and personal files, enhancing data organization and accessibility. Additionally, it allows for better utilization of resources, improved performance, and easier backups or system recovery processes.
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16 GB
One of your drives has an error (known or unknown)
As a rule, the most common RAID levels in use today are:No RAID - logical data volumes exist within single physical driveRAID 0 - logical data volumes striped across multiple physical drives with no parity/data protection. Common, but not necessarily a good idea (backup is important here).RAID 1 - logical data volumes mirrored, bit-for-bit, between two physical drives (in come implementations, additional mirror drives can be created)RAID 5 - logical data volumes striped across multiple drives with parity/data protection generated and distributed among all drives in the RAID set.Three notes come to mind:Depending on implementation, RAID devices appear as a logical (or physical) drive to the OS or application. Software RAID, configurable in utilities such as in Windows Disk Manager or MDADM (Linux) works just below the operating system, providing a representation of a virtual physical disk to the operating system.Sometimes, RAID levels are combined, such as RAID 0+1 (striped, then mirrored) or RAID 1+0/10 (mirrored, then striped).As drives and RAID sets get larger (2-3 TB+), the time to recalculate/recover data for a failed physical drive becomes prohibitive, both in downtime/degraded operation and vulnerability to data loss from an additional failure.A number of new technologies, as well modifications to classic RAID, are being explored to address shortcoming 3.
Logical Drives
One of your drives has an error (known or unknown)
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You can have more than one local disk by installing multiple physical hard drives or solid-state drives in your computer, or by partitioning a single drive into multiple logical drives. Each physical drive can be recognized as a separate disk by the operating system, while partitions allow a single drive to be divided into distinct sections, each functioning as an independent local disk. Additionally, using external drives can also expand your storage options.